I fail to see how posting thoughtful writing on hacker news is self promotion. I don’t see a way you are profiting or soliciting money.

It seems these sorts of articles are exactly what people come here for.

Although… “There is little that I have read on the internet that I have found to be worth reading... and what is worth reading is not worth sharing.”

Why would you attempt to share your writing with the sorts of simple idiots who read things on the internet? I recommend that you retreat to your ivory tower in the depths of the wasteland and write your profound musings in a calfskin bound vellum book on a pedestal in your extensive and impressive library.